ICD-10 Code E72.89 – Other specified disorders of amino-acid metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E72.89 – Other specified disorders of amino-acid metabolism
What it is
E72.89 identifies an amino-acid metabolism disorder that does not fit a more specific ICD-10-CM category. Use it when the clinician documents a defined amino-acid metabolic problem, but the exact named disorder is not listed elsewhere.
Clinical signs
Clinical features vary; refer to documentation. Findings may include developmental delay, neurologic symptoms, feeding problems, or other manifestations of an inherited or acquired amino-acid processing disorder.
When to use this code
Use this code when the record clearly states an other specified amino-acid metabolism disorder and a more specific code is not available. It may also apply when the provider names an atypical amino-acid disorder that is not otherwise classifiable. Check documentation for the exact diagnosis.
Do not use for
Do not use E72.89 for unspecified metabolic disorders or for amino-acid conditions with a dedicated ICD-10-CM code. If the chart names a specific inborn error, code that condition instead.
Coding tip
Code the most specific documented amino-acid disorder first; use E72.89 only when no more specific option exists.